CVE-2013-2175

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    CVE-2013-2175

    Published: 19 Aug 2013Last Modified: 10 Apr 2026

    Summary:

    Details: HAProxy 1.4 before 1.4.24 and 1.5 before 1.5-dev19, when configured to use hdr_ip or other "hdr_*" functions with a negative occurrence count, allows remote attackers to cause a denial of service (negative array index usage and crash) via an HTTP header with a certain number of values, related to the MAX_HDR_HISTORY variable.

    References: http://marc.info/?l=haproxy&m=137147915029705&w=2, http://rhn.redhat.com/errata/RHSA-2013-1120.html, http://rhn.redhat.com/errata/RHSA-2013-1204.html, http://secunia.com/advisories/54344, http://www.debian.org/security/2013/dsa-2711, http://www.ubuntu.com/usn/USN-1889-1, http://marc.info/?l=haproxy&m=137147915029705&w=2, https://bugzilla.redhat.com/show_bug.cgi?id=974259

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High